The object that I hate most would be my can opener. This is what I consider to be an ancient can opener. There is absolutely no visibility; you would never know what to do with it unless you have been told. The actual metal piece that is supposed to puncture the can almost never fits properly in place, and it requires a lot of effort to hold it there when it actually works. The metal part that you turn resembles the piece used to wind up an old clock. According to affordance it is clear that you must turn it in order to produce a result. It is uncomfortable and hard to grip. The entire opener is also covered in rust, which I find disgusting. If it is going to be used for food it should have been made out of more durable material.
The object that I love most is my ipod touch. It uses visibility to clearly communicate actions to be taken in order to operate it. The pictures of buttons clearly communicate that you must actually touch them. The ipod also includes a significant amount of feedback. When you press a button or try to use on of its applications it will tell you what you have done and any other options available. According to affordance the object itself gives you appropriate clues in order to operate it. The touch uses mapping in the form of symbols on the buttons to help you understand what each one will do.
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